Serena Williams announces pregnancy

Serena pressed 'wrong button' to reveal pregnancy

Serena Williams said she pressed the wrong button to reveal to the world that she is expecting her first child.

Record-breaking grand-slam tennis champion and former world number one Serena Williams is expecting her first child.

Williams sent social media and the tennis world into frenzy on Wednesday when she posted a photo of herself on Snapchat with a caption that read simply "20 weeks" before the 23-time major winner deleted the post.

However, the 35-year-old American's representative confirmed the pregnancy in a widely circulated statement hours later.

"I'm happy to confirm Serena is expecting a baby this fall," the statement read.

Williams - who boasts an 8-1 win-loss record in 2017 - was due to make a WTA Tour comeback from a knee injury at the Madrid Open in May, having been sidelined in Indian Wells and Miami, but reports later suggested she will sit out the remainder of the season.

The legendary tennis player announced her engagement to Alexis Ohanian, the co-founder of Reddit, in December.

She then went on to win the Australian Open in January, beating sister Venus for her seventh title at Melbourne Park. The "20 weeks" timeline suggests Serena was pregnant at the time.

That victory also marked an Open-era record of 23 grand-slam titles for Serena.